122203242302221 has 4 divisors (see below), whose sum is σ = 122298046991100. Its totient is φ = 122108437613344.

The previous prime is 122203242302173. The next prime is 122203242302249.

It is a happy number.

122203242302221 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 41852994033321 + 80350248268900 = 6469389^2 + 8963830^2 .

It is a cyclic number.

It is not a de Polignac number, because 122203242302221 - 2²¹ = 122203240205069 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122203242302221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122203242302291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47402342506 + ... + 47402345083.

It is an arithmetic number, because the mean of its divisors is an integer number (30574511747775).

Almost surely, 2^{122203242302221} is an apocalyptic number.

It is an amenable number.

122203242302221 is a deficient number, since it is larger than the sum of its proper divisors (94804688879).

122203242302221 is an equidigital number, since it uses as much as digits as its factorization.

122203242302221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94804688878.

The product of its (nonzero) digits is 9216, while the sum is 28.

The spelling of 122203242302221 in words is "one hundred twenty-two trillion, two hundred three billion, two hundred forty-two million, three hundred two thousand, two hundred twenty-one".